If a target does not support libbacktrace, it might still the include
for $(top_srcdir).
Regenerate the built files using automake-1.15.1
libsanitizer/
2019-08-15 Iain Sandoe <iain@sandoe.co.uk>
PR bootstrap/91455
* Makefile.in: Regenerated.
* aclocal.m4: Likewise.
* asan/Makefile.in: Likewise.
* configure: Likewise.
* interception/Makefile.in: Likewise.
* libbacktrace/Makefile.in: Likewise.
* lsan/Makefile.in: Likewise.
* sanitizer_common/Makefile.am: Include top_srcdir unconditionally.
* sanitizer_common/Makefile.in: Regenerated.
* tsan/Makefile.in: Likewise.
* ubsan/Makefile.in: Likewise.
From-SVN: r274538
2019-08-15 Jozef Lawrynowicz <jozef.l@mittosystems.com>
MSP430: Fix whitespace errors and incorrect indentation in
config/msp430/*.{c,h} files
* config/msp430/driver-msp430.c (msp430_select_cpu): Fix indentation.
(msp430_select_hwmult_lib): Likewise.
* config/msp430/msp430-devices.c (parse_devices_csv_1): Likewise.
(msp430_extract_mcu_data): Likewise.
(struct t_msp430_mcu_data): Likewise.
* config/msp430/msp430.c (struct machine_function): Remove whitespace
before left square bracket.
(msp430_option_override): Fix indentation.
(msp430_hard_regno_nregs_with_padding): Likewise.
(msp430_initial_elimination_offset): Likewise.
(msp430_special_register_convention_p): Remove whitespace before left
square bracket and after exclamation mark.
(msp430_evaluate_arg): Likewise.
(msp430_callee_copies): Fix indentation.
(msp430_gimplify_va_arg_expr): Likewise.
(msp430_function_arg_advance): Remove whitespace before left square
bracket.
(reg_ok_for_addr): Likewise.
(msp430_preserve_reg_p): Likewise.
(msp430_compute_frame_info): Likewise.
(msp430_asm_output_addr_const_extra): Add space between function name
and open parenthesis.
(has_section_name): Fix indentation.
(msp430_attr): Remove trailing whitespace.
(msp430_section_attr): Likewise.
(msp430_data_attr): Likewise.
(struct msp430_attribute_table): Fix comment and whitespace.
(msp430_start_function): Remove whitespace before left square bracket.
Add space between function name and open parenthesis.
(msp430_select_section): Remove trailing whitespace.
(msp430_section_type_flags): Remove trailing whitespace.
(msp430_unique_section): Remove space before closing parenthesis.
(msp430_output_aligned_decl_common): Change 8 spaces to a tab.
(msp430_builtins): Remove whitespace before left square bracket.
(msp430_init_builtins): Fix indentation.
(msp430_expand_prologue): Remove whitespace before left square bracket.
Remove space before closing parenthesis.
(msp430_expand_epilogue): Remove whitespace before left square bracket.
(msp430_split_movsi): Remove space before closing parenthesis.
(helper_function_name_mappings): Fix indentation.
(msp430_use_f5_series_hwmult): Fix whitespace.
(use_32bit_hwmult): Likewise.
(msp430_no_hwmult): Likewise.
(msp430_output_labelref): Remove whitespace before left square bracket.
(msp430_print_operand_raw): Likewise.
(msp430_print_operand_addr): Likewise.
(msp430_print_operand): Add two spaces after '.' in comment.
Fix trailing whitespace.
(msp430x_extendhisi): Fix indentation.
* config/msp430/msp430.h (TARGET_CPU_CPP_BUILTINS): Change 8 spaces to
tab.
(PC_REGNUM): Likewise.
(STACK_POINTER_REGNUM): Likewise.
(CC_REGNUM): Likewise.
From-SVN: r274536
2019-08-15 Richard Biener <rguenther@suse.de>
PR target/91454
* config/i386/i386-features.c (gen_gpr_to_xmm_move_src): New
helper.
(general_scalar_chain::make_vector_copies): Use it.
From-SVN: r274535
With Concepts, overloads of special member functions can differ in
constraints, and this paper clarifies how that affects class properties: if
a class has a more constrained trivial copy constructor and a less
constrained non-trivial copy constructor, it is still trivially copyable.
* tree.c (special_memfn_p): New.
* class.c (add_method): When overloading, hide ineligible special
member fns.
(check_methods): Set TYPE_HAS_COMPLEX_* here.
* decl.c (grok_special_member_properties): Not here.
* name-lookup.c (push_class_level_binding_1): Move overloaded
functions case down, accept FUNCTION_DECL as target_decl.
From-SVN: r274534
2019-08-15 Martin Liska <mliska@suse.cz>
* tree-ssa-dce.c (propagate_necessity): We can't reach now
operators with no arguments.
(eliminate_unnecessary_stmts): Likewise here.
From-SVN: r274529
2019-08-15 Richard Biener <rguenther@suse.de>
c-family/
* c-common.c (c_stddef_cpp_builtins): When the GIMPLE FE is
enabled, define __SIZETYPE__.
* gcc.dg/pr80170.c: Adjust to use __SIZETYPE__.
From-SVN: r274528
In this PR we were passing an ordinary non-built-in function to
targetm.vectorize.builtin_md_vectorized_function, which is only
supposed to handle BUILT_IN_MD.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
PR middle-end/91444
* tree-vect-stmts.c (vectorizable_call): Check that the function
is a BUILT_IN_MD function before passing it to
targetm.vectorize.builtin_md_vectorized_function.
From-SVN: r274524
This patch adds an exported function for testing whether a mode is
an SVE mode. The ACLE will make more use of it, but there's already
one place that can benefit.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-protos.h (aarch64_sve_mode_p): Declare.
* config/aarch64/aarch64.c (aarch64_sve_mode_p): New function.
(aarch64_select_early_remat_modes): Use it.
From-SVN: r274523
aarch64_simd_vector_alignment was only giving predicates 16-bit
alignment in VLA mode, not VLS mode. I think the problem is latent
because we can't yet create an ABI predicate type, but it seemed worth
fixing in a standalone patch rather than as part of the main ACLE series.
The ACLE patches have tests for this.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64.c (aarch64_simd_vector_alignment): Return
16 for SVE predicates even if they are fixed-length.
From-SVN: r274522
SVE defines an assembly alias:
MOV pa.B, pb/Z, pc.B -> AND pa.B. pb/Z, pc.B, pc.B
Our and<mode>3 pattern was instead using the functionally-equivalent:
AND pa.B. pb/Z, pb.B, pc.B
^^^^
This patch duplicates pc.B instead so that the alias can be seen
in disassembly.
I wondered about using the alias in the pattern instead, but using AND
explicitly seems to fit better with the pattern name and surrounding code.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-sve.md (and<PRED_ALL:mode>3): Make the
operand order match the MOV /Z alias.
From-SVN: r274521
This patch makes us always pass an explicit vector pattern to
aarch64_output_sve_cnt_immediate, rather than assuming it's ALL.
The ACLE patches need to be able to pass in other values.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64.c (aarch64_output_sve_cnt_immediate): Take
the vector pattern as an aarch64_svpattern argument. Update the
overloaded caller accordingly.
(aarch64_output_sve_scalar_inc_dec): Update call accordingly.
(aarch64_output_sve_vector_inc_dec): Likewise.
From-SVN: r274520
aarch64_add_offset contains code to decompose all SVE VL-based constants
into native operations. The worst-case fallback is to load the number
of SVE elements into a register and use a general multiplication.
This patch improves that fallback by reusing expand_mult if
can_create_pseudo_p, rather than emitting a MULT pattern directly.
In order to increase the chances of being able to use a simple
add-and-shift, the patch also tries to compute VG * the lowest set
bit of the multiplier, rather than always using CNTD as the basis
for the multiplication path.
This is tested by the ACLE patches but is really an independent
improvement.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64.c (aarch64_add_offset): In the fallback
multiplication case, try to compute VG * (lowest set bit) directly
rather than always basing the multiplication on VG. Use
expand_mult for the multiplication if we can.
gcc/testsuite/
* gcc.target/aarch64/sve/loop_add_4.c: Expect 10 INCWs and
INCDs rather than 8.
From-SVN: r274519
The scalar addition patterns allowed all the VL constants that
ADDVL and ADDPL allow, but wrote the instructions as INC or DEC
if possible (i.e. adding or subtracting a number of elements * [1, 16]
when the source and target registers the same). That works for the
cases that the autovectoriser needs, but there are a few constants
that INC and DEC can handle but ADDPL and ADDVL can't. E.g.:
inch x0, all, mul #9
is not a multiple of the number of bytes in an SVE register, and so
can't use ADDVL. It represents 36 times the number of bytes in an
SVE predicate, putting it outside the range of ADDPL.
This patch therefore adds separate alternatives for INC and DEC,
tied to a new Uai constraint. It also adds an explicit "scalar"
or "vector" to the function names, to avoid a clash with the
existing support for vector INC and DEC.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-protos.h
(aarch64_sve_scalar_inc_dec_immediate_p): Declare.
(aarch64_sve_inc_dec_immediate_p): Rename to...
(aarch64_sve_vector_inc_dec_immediate_p): ...this.
(aarch64_output_sve_addvl_addpl): Take a single rtx argument.
(aarch64_output_sve_scalar_inc_dec): Declare.
(aarch64_output_sve_inc_dec_immediate): Rename to...
(aarch64_output_sve_vector_inc_dec): ...this.
* config/aarch64/aarch64.c (aarch64_sve_scalar_inc_dec_immediate_p)
(aarch64_output_sve_scalar_inc_dec): New functions.
(aarch64_output_sve_addvl_addpl): Remove the base and offset
arguments. Only handle true ADDVL and ADDPL instructions;
don't emit an INC or DEC.
(aarch64_sve_inc_dec_immediate_p): Rename to...
(aarch64_sve_vector_inc_dec_immediate_p): ...this.
(aarch64_output_sve_inc_dec_immediate): Rename to...
(aarch64_output_sve_vector_inc_dec): ...this. Update call to
aarch64_sve_vector_inc_dec_immediate_p.
* config/aarch64/predicates.md (aarch64_sve_scalar_inc_dec_immediate)
(aarch64_sve_plus_immediate): New predicates.
(aarch64_pluslong_operand): Accept aarch64_sve_plus_immediate
rather than aarch64_sve_addvl_addpl_immediate.
(aarch64_sve_inc_dec_immediate): Rename to...
(aarch64_sve_vector_inc_dec_immediate): ...this. Update call to
aarch64_sve_vector_inc_dec_immediate_p.
(aarch64_sve_add_operand): Update accordingly.
* config/aarch64/constraints.md (Uai): New constraint.
(vsi): Update call to aarch64_sve_vector_inc_dec_immediate_p.
* config/aarch64/aarch64.md (add<GPI:mode>3): Don't force the second
operand into a register if it satisfies aarch64_sve_plus_immediate.
(*add<GPI:mode>3_aarch64, *add<GPI:mode>3_poly_1): Add an alternative
for Uai. Update calls to aarch64_output_sve_addvl_addpl.
* config/aarch64/aarch64-sve.md (add<mode>3): Call
aarch64_output_sve_vector_inc_dec instead of
aarch64_output_sve_inc_dec_immediate.
From-SVN: r274518
The current SVE REV patterns follow the AArch64 scheme, in which
UNSPEC_REV<NN> reverses elements within an <NN>-bit granule.
E.g. UNSPEC_REV64 on VNx8HI reverses the four 16-bit elements
within each 64-bit granule.
The native SVE scheme is the other way around: UNSPEC_REV64 is seen
as an operation on 64-bit elements, with REVB swapping bytes within
the elements, REVH swapping halfwords, and so on. This fits SVE more
naturally because the operation can then be predicated per <NN>-bit
granule/element.
Making the patterns use the Advanced SIMD scheme was more natural
when all we cared about were permutes, since we could then use
the source and target of the permute in their original modes.
However, the ACLE does need patterns that follow the native scheme,
treating them as operations on integer elements. This patch defines
the patterns that way instead and updates the existing uses to match.
This also brings in a couple of helper routines from the ACLE branch.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/iterators.md (UNSPEC_REVB, UNSPEC_REVH)
(UNSPEC_REVW): New constants.
(elem_bits): New mode attribute.
(SVE_INT_UNARY): New int iterator.
(optab): Handle UNSPEC_REV[BHW].
(sve_int_op): New int attribute.
(min_elem_bits): Handle VNx16QI and the predicate modes.
* config/aarch64/aarch64-sve.md (*aarch64_sve_rev64<mode>)
(*aarch64_sve_rev32<mode>, *aarch64_sve_rev16vnx16qi): Delete.
(@aarch64_pred_<SVE_INT_UNARY:optab><SVE_I:mode>): New pattern.
* config/aarch64/aarch64.c (aarch64_sve_data_mode): New function.
(aarch64_sve_int_mode, aarch64_sve_rev_unspec): Likewise.
(aarch64_split_sve_subreg_move): Use UNSPEC_REV[BHW] instead of
unspecs based on the total width of the reversed data.
(aarch64_evpc_rev_local): Likewise (for SVE only). Use a
reinterpret followed by a subreg on big-endian targets.
gcc/testsuite/
* gcc.target/aarch64/sve/revb_1.c: Restrict to little-endian targets.
Avoid including stdint.h.
* gcc.target/aarch64/sve/revh_1.c: Likewise.
* gcc.target/aarch64/sve/revw_1.c: Likewise.
* gcc.target/aarch64/sve/revb_2.c: New big-endian test.
* gcc.target/aarch64/sve/revh_2.c: Likewise.
* gcc.target/aarch64/sve/revw_2.c: Likewise.
From-SVN: r274517
This patch makes the floating-point conditional FMA patterns provide the
same /z alternatives as the integer patterns added by a previous patch.
We can handle cases in which individual inputs are allocated to the same
register as the output, so we don't need to force all registers to be
different.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
Kugan Vivekanandarajah <kugan.vivekanandarajah@linaro.org>
gcc/
* config/aarch64/aarch64-sve.md
(*cond_<SVE_COND_FP_TERNARY:optab><SVE_F:mode>_any): Add /z
alternatives in which one of the inputs is in the same register
as the output.
gcc/testsuite/
* gcc.target/aarch64/sve/cond_mla_5.c: Allow FMAD as well as FMLA
and FMSB as well as FMLS.
Co-Authored-By: Kugan Vivekanandarajah <kuganv@linaro.org>
From-SVN: r274516
We use EXT both to implement vec_extract for large indices and as a
permute. In both cases we can use MOVPRFX to handle the case in which
the first input and output can't be tied.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-sve.md (*vec_extract<mode><Vel>_ext)
(*aarch64_sve_ext<mode>): Add MOVPRFX alternatives.
gcc/testsuite/
* gcc.target/aarch64/sve/ext_2.c: Expect a MOVPRFX.
* gcc.target/aarch64/sve/ext_3.c: New test.
From-SVN: r274515
The floating-point subtraction patterns don't need to handle
subtraction of constants, since those go through the addition
patterns instead. There was a missing MOVPRFX alternative for
FSUBR though.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-sve.md (*sub<SVE_F:mode>3): Remove immediate
FADD and FSUB alternatives. Add a MOVPRFX alternative for FSUBR.
From-SVN: r274514
FABD and some immediate instructions were missing MOVPRFX alternatives.
This is tested by the ACLE patches but is really an independent improvement.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
Kugan Vivekanandarajah <kugan.vivekanandarajah@linaro.org>
gcc/
* config/aarch64/aarch64-sve.md (add<SVE_I:mode>3, sub<SVE_I:mode>3)
(<LOGICAL:optab><SVE_I:mode>3, *add<SVE_F:mode>3, *mul<SVE_F:mode>3)
(*fabd<SVE_F:mode>3): Add more MOVPRFX alternatives.
Co-Authored-By: Kugan Vivekanandarajah <kuganv@linaro.org>
From-SVN: r274513
This patch makes us use reversed SVE shifts when the first operand
can't be tied to the output but the second can. This is tested
more thoroughly by the ACLE patches but is really an independent
improvement.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
gcc/
* config/aarch64/aarch64-sve.md (*v<ASHIFT:optab><SVE_I:mode>3):
Add an alternative that uses reversed shifts.
gcc/testsuite/
* gcc.target/aarch64/sve/shift_1.c: Accept reversed shifts.
Co-Authored-By: Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
From-SVN: r274512
The neoversen1 tuning struct gives better performance on the Cortex-A76, so use that.
The only difference from the current tuning is the function and label alignment settings.
This gives about 1.3% improvement on SPEC2006 int and 0.3% on SPEC2006 fp.
* config/aarch64/aarch64-cores.def (cortex-a76): Use neoversen1 tuning
struct.
From-SVN: r274511
This will be tested by the ACLE patches, but it's really an
independent improvement.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/aarch64-sve.md (aarch64_<su>abd<mode>_3): Add
a commutativity marker.
From-SVN: r274510
This patch uses predicated MLA, MLS, MAD and MSB to implement
conditional "FMA"s on integers. This also requires providing
the unpredicated optabs (fma and fnma) since otherwise
tree-ssa-math-opts.c won't try to use the conditional forms.
We still want to use shifts and adds in preference to multiplications,
so the patch makes the optab expanders check for that.
The tests cover floating-point types too, which are already handled,
and which were already tested to some extent by gcc.dg/vect.
2019-08-15 Richard Sandiford <richard.sandiford@arm.com>
Kugan Vivekanandarajah <kugan.vivekanandarajah@linaro.org>
gcc/
* config/aarch64/aarch64-protos.h (aarch64_prepare_sve_int_fma)
(aarch64_prepare_sve_cond_int_fma): Declare.
* config/aarch64/aarch64.c (aarch64_convert_mult_to_shift)
(aarch64_prepare_sve_int_fma): New functions.
(aarch64_prepare_sve_cond_int_fma): Likewise.
* config/aarch64/aarch64-sve.md
(cond_<SVE_INT_BINARY:optab><SVE_I:mode>): Add a "@" marker.
(fma<SVE_I:mode>4, cond_fma<SVE_I:mode>, *cond_fma<SVE_I:mode>_2)
(*cond_fma<SVE_I:mode>_4, *cond_fma<SVE_I:mode>_any, fnma<SVE_I:mode>4)
(cond_fnma<SVE_I:mode>, *cond_fnma<SVE_I:mode>_2)
(*cond_fnma<SVE_I:mode>_4, *cond_fnma<SVE_I:mode>_any): New patterns.
(*madd<mode>): Rename to...
(*fma<mode>4): ...this.
(*msub<mode>): Rename to...
(*fnma<mode>4): ...this.
gcc/testsuite/
* gcc.target/aarch64/sve/cond_mla_1.c: New test.
* gcc.target/aarch64/sve/cond_mla_1_run.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_2.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_2_run.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_3.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_3_run.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_4.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_4_run.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_5.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_5_run.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_6.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_6_run.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_7.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_7_run.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_8.c: Likewise.
* gcc.target/aarch64/sve/cond_mla_8_run.c: Likewise.
Co-Authored-By: Kugan Vivekanandarajah <kuganv@linaro.org>
From-SVN: r274509
2019-08-15 Martin Liska <mliska@suse.cz>
PR ipa/91438
* cgraph.c (cgraph_node::remove): When setting
n->origin = NULL for all nested functions, reset
also next_nested.
From-SVN: r274504
2019-08-15 Martin Liska <mliska@suse.cz>
PR ipa/91404
* passes.c (order): Remove.
(uid_hash_t): Likewise).
(remove_cgraph_node_from_order): Remove from set
of pointers (cgraph_node *).
(insert_cgraph_node_to_order): New.
(duplicate_cgraph_node_to_order): New.
(do_per_function_toporder): Register all 3 cgraph hooks.
Skip removed_nodes now as we know about all of them.
From-SVN: r274502
The std::make_unique function wasn't added until C++14, and neither was
the std::complex_literals namespace.
gcc/cp:
PR c++/91436
* name-lookup.c (get_std_name_hint): Fix min_dialect field for
complex_literals and make_unique entries.
gcc/testsuite:
PR c++/91436
* g++.dg/lookup/missing-std-include-5.C: Limit test to C++14 and up.
* g++.dg/lookup/missing-std-include-6.C: Don't check make_unique in
test that runs for C++11.
* g++.dg/lookup/missing-std-include-8.C: Check make_unique here.
From-SVN: r274492
This non-standard extension is redundant and unused by the library.
* include/std/type_traits (__is_nullptr_t): Add deprecated attribute.
From-SVN: r274491
* config/i386/i386-expand.c (ix86_expand_vector_init_one_nonzero)
<case E_V8QImode>: Use vector_set path for
TARGET_MMX_WITH_SSE && TARGET_SSE4_1.
(ix86_expand_vector_init_one_nonzero) <case E_V8QImode>:
Do not widen for TARGET_MMX_WITH_SSE && TARGET_SSE4_1.
From-SVN: r274490
* parser.c (cp_parser_postfix_open_square_expression): Don't warn about
a deprecated comma here. Pass warn_comma_subscript down to
cp_parser_expression.
(cp_parser_expression): New bool parameter. Warn about uses of a comma
operator within a subscripting expression.
(cp_parser_skip_to_closing_square_bracket): Revert to pre-r274121 state.
(cp_parser_skip_to_closing_square_bracket_1): Remove.
* g++.dg/cpp2a/comma5.C: New test.
Co-Authored-By: Marek Polacek <polacek@redhat.com>
From-SVN: r274483
Similar to what already exists for TI msp430 or in TI compilers for
arm, this patch adds support for the "noinit" attribute.
It is convenient for embedded targets where the user wants to keep the
value of some data when the program is restarted: such variables are
not zero-initialized. It is mostly a helper/shortcut to placing
variables in a dedicated section.
It's probably desirable to add the following chunk to the GNU linker:
diff --git a/ld/emulparams/armelf.sh b/ld/emulparams/armelf.sh
index 272a8bc..9555cec 100644
--- a/ld/emulparams/armelf.sh
+++ b/ld/emulparams/armelf.sh
@@ -10,7 +10,19 @@ OTHER_TEXT_SECTIONS='*(.glue_7t) *(.glue_7)
*(.vfp11_veneer) *(.v4_bx)'
OTHER_BSS_SYMBOLS="${CREATE_SHLIB+PROVIDE (}__bss_start__ =
.${CREATE_SHLIB+)};"
OTHER_BSS_END_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_bss_end__ =
.${CREATE_SHLIB+)}; ${CREATE_SHLIB+PROVIDE (}__bss_end__ =
.${CREATE_SHLIB+)};"
OTHER_END_SYMBOLS="${CREATE_SHLIB+PROVIDE (}__end__ = .${CREATE_SHLIB+)};"
-OTHER_SECTIONS='.note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }'
+OTHER_SECTIONS='
+.note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
+ /* This section contains data that is not initialised during load
+ *or* application reset. */
+ .noinit (NOLOAD) :
+ {
+ . = ALIGN(2);
+ PROVIDE (__noinit_start = .);
+ *(.noinit)
+ . = ALIGN(2);
+ PROVIDE (__noinit_end = .);
+ }
+'
so that the noinit section has the "NOLOAD" flag.
I added a testcase if gcc.c-torture/execute, gated by the new noinit
effective-target.
Finally, I tested on arm-eabi, but not on msp430 for which I do not
have the environment.
gcc/ChangeLog:
2019-08-14 Christophe Lyon <christophe.lyon@linaro.org>
* doc/extend.texi: Add "noinit" attribute documentation.
* doc/sourcebuild.texi: Add noinit effective target documentation.
* varasm.c (default_section_type_flags): Add support for "noinit" section.
(default_elf_select_section): Add support for "noinit" attribute.
* config/msp430/msp430.c (msp430_attribute_table): Remove "noinit" entry.
gcc/c-family/ChangeLog:
2019-08-14 Christophe Lyon <christophe.lyon@linaro.org>
* c-attribs.c (c_common_attribute_table): Add "noinit" entry. Add
exclusion with "section" attribute.
(attr_noinit_exclusions): New table.
(handle_noinit_attribute): New function.
gcc/testsuite/ChangeLog:
2019-08-14 Christophe Lyon <christophe.lyon@linaro.org>
* lib/target-supports.exp (check_effective_target_noinit): New
proc.
* gcc.c-torture/execute/noinit-attribute.c: New test.
From-SVN: r274482
